'Martyr's Day' is marked on:

• January 1
• January 15
• January 30
• January 9
Correct Option: C  [ January 30 ]

Remark:

National Science Day is observed on

• 22 December
• 28 February
• 5 June
• None of these
Correct Option: B  [ 28 February ]

Remark: To mark the discovery of the Raman effect by Indian physicist Sir Chandrashekhara Venkata Raman on 28 February 1928.